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You searched for: subject:"Where -- Nigeria"
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[image]Gotel Mountains, Nigeria and Cameroon - Topographic signatures of differing rock types, erosion - NASA/JPL/NGA
River drainage patterns provide clues to rock types and erosion processes involved in landscape evolution. In the Gotel Mountains, lowlands are composed of thick, uniform, relatively soft rocks or sediments. The randomness of river patterns there indicates stream erosion is the only significant dynamic process altering the landscape. Neighboring highlands are made of hard, erosion-resistant rocks that cracked to form zones of weakness...
Keywords: Where -- Nigeria; Where -- Cameroon
Downloads: 45
[image]Clouds Mexico - NASA/GSFC/JPL, MISR Team.
Cloud swirls forming patterns around the 1050-meter-high 0.65-mile-high summit on the island of Socorro, Mexico. Left: April 23, 2000. Right: May 9, 2000. These turbulent atmospheric eddies form in the wake of an obstacle, while the surrounding clouds make the vortex patterns visible. To the northeast, much subtler disturbances are associated with the tiny Isla San Benedicto. Both islands are part of a group known as the Revillagigedo Archipelago, and are located about 400 kilometers 250 miles e...
Keywords: Where -- Nigeria; Where -- Cameroon
Downloads: 124
[image]Dust Storm off Western Sahara Coast - NASA image courtesy NASA-Goddard Space Flight Center
Clouds of dust from deserts in northern Africa continued to spill westward out over the Atlantic Ocean on February 16, 2005. In the lower right corner of the image, dust is especially thick over Nigeria. The veil of dust stretches across the lower half of the image and spreads westward to the edge of the image. In fact, the plume of dust extends hundreds of kilometers farther over the Atlantic than what is pictured here...
Keywords: Where -- Atlantic Ocean; Where -- Nigeria
Downloads: 6
[image]Fires across the Sahel - Image courtesy Jacques Descloitres, Rapid Response Team.
Each year in March and April thousands of fires smolder in the grasslands, scrub, and dry forests of the West African Sahel and Soudanian woodlands. NASA’s Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard the Terra spacecraft, captured this true-color image on March 2, 2001. Data from MODIS' infrared detectors were used to locate areas where fires are burning, shown by red dots...
Keywords: Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 3
[image]Dust and Smoke near Lake Chad - Image courtesy Jesse Allen, based on data from the at NASA GSFC
A combination of dust of smoke clouds the air over Nigeria, Cameroon, and Chad in this Moderate Resolution Imaging Spectroradiometer (MODIS) image acquired on January 8, 2004, by the Aqua satellite. The streak of white in the top right corner is dust blowing out of the Bodele Depression. Dust storms in the Bodele depression are common. As recently as the 1960s, the area formed part of Lake Chad on the southern edges of the vast Sahara desert...
Keywords: Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 3
[image]Dust Storm in Chad - NASA image courtesy the at NASA GSFC. The MODIS Rapid Response Team provides of this region.
A dust storm blew through part of eastern Chad on June 11, 2006. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard NASA’s Terra satellite captured this image of the storm as it blew toward Lake Chad. In this image, the dust appears as a wisp of pale beige set against a darker tan background. Lake Chad, near the border with Nigeria and Cameroon, is barely visible in this image, although it has been easily discernible in other satellite images.Although large, Lake Chad is ...
Keywords: Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust Storm in the Bodele Depression - NASA image created by Jesse Allen, Earth Observatory, using data obtained from the Goddard Land Processes DAAC.
The air over central Africa was bright with blowing dust (top) and what is probably a mixture of dust and smoke (left center) when this image of the area around Lake Chad (large green area above image center) was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite was captured on November 28, 2004. In addition to the dust storm in the Bodele Depression north of Lake Chad, numerous fires (locations marked in red) burning in the Sahel and savannas of N...
Keywords: Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust near Lake Chad - Image courtesy Jesse Allen, based on data from the at NASA GSFC
Dust clouds the air over Nigeria, Cameroon, and Chad in this Moderate Resolution Imaging Spectroradiometer (MODIS) image acquired on January 8, 2004, by the Aqua satellite. The streak of white in the top right corner is dust blowing out of the Bodele Depression. Dust storms in the Bodele depression are common. As recently as the 1960s, the area formed part of Lake Chad on the southern edges of the vast Sahara desert...
Keywords: Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 4
[image]Fires across the Sahel - Image courtesy Jacques Descloitres, Rapid Response Team.
Each year in March and April thousands of fires smolder in the grasslands, scrub, and dry forests of the West African Sahel and Soudanian woodlands. NASA’s Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard the Terra spacecraft, captured this true-color image on March 2, 2001. Data from MODIS' infrared detectors were used to locate areas where fires are burning, shown by red dots...
Keywords: Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust storm in Bodele Depression, Chad (morning overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
White dust from the Bodele Depression scrapes over the Lake Chad region in Eastern Chad in these Moderate Resolution Imaging Spectroradiometer (MODIS) images acquired on March 19 and March 21, 2004. Hot wind from the Sahara frequently sweeps over the dusty Bodele Depression. The pattern is so common that the winds have scoured a diagonal path in the ground marking its southwesterly flow. The lines are visible in the upper right corner of these images...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust storm in Bodele Depression, Chad - Jeff Schmaltz
A dust storm cuts a wide swath across this image of the Bodélé Depression in the country of Chad. The brown, tan, and gold colors are the sands of the Sahara; the country on the right, dominating the image is Chad. On the left side of the image is Southeastern Niger, on the bottom left is Northwestern Nigeria and a small piece of Nothern Cameroon. This storm comes as no surprise as the Bodélé is the largest source of dust on the planet...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 13
[image]Dust Storm in Central Africa - NASA image courtesy the NASA-Goddard Space Flight Center
On March 23, 2005, winds were whipping across the sands of the southern Sahara Desert in northern Africa, spreading thick clouds of dust. The thickest plumes of dust are visible in Sudan, Chad and Niger, but dust also reaches southward into Nigeria (south of Niger) and Cameroon (east of Nigeria). On the Atlantic coast, scores of fires (marked in red) are burning in Senegal.Dust storms are frequent hazards to farmers and herders in the semi-arid lands at the southern margin of the Sahara...
Keywords: Where -- Sudan; Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 5
[image]Dust storm in Chad - Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
Highly reflective dust was blowing over Lake Chad (green splash at bottom of image) and northeastward into Chad on April 9, 2003. Frequent dust storms are just one of the many factors slowly eating away at this prime source of freshwater for people, animals and plants in (clockwise from top left) Niger, Nigeria, Cameroon, and Chad. Increasing demand for irrigation is draining the lake, and blowing sand and desert dust are creating sand dunes that are encroaching on the vegetation along the perim...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust storm in Chad - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Dust storms from the Sahara regularly whip through central Africa. These images show Lake Chad (green splash) roughly in the image center, and (clockwise from upper left) Niger, Chad, Cameroon, and Nigeria. In Chad, scattered fires (red dots) were detected by MODIS as well. A dust storm in northern Chad softens the top part of the image. Sensor: Terra/MODIS. Data Start Date: 1/3/03. Data End Date: 1/3/03.
Keywords: Where -- Chad; Where -- Niger; Where -- Cameroon; Where -- Nigeria
Downloads: 3
[image]Fires across Central Africa - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
The Moderate Resolution Imaging Spectroradiometer (MODIS) detected over 7,000 fires burning in Central Africa on December 7, 2003. The fires, which have been marked with red dots, cover Nigeria, Cameroon, and Chad across the top, from left to right; Central African Republic, right center; and Democratic Republic of the Congo, lower right. Fire is a common land management tool, and the widespread nature of these fires suggests that these were probably deliberately set to clear land...
Keywords: Where -- Central African Republic; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 3
[image]Dust Storm over Lake Chad - Image courtesy Jeff Schmaltz, NASA GSFC
Highly reflective dust was blowing from the northeast over Lake Chad (green splash at bottom of image) on April 9, 2003. Frequent dust storms are just one of the many factors slowly eating away at this prime source of freshwater for people, animals and plants in (counterclockwise from top left) Niger, Nigeria, Cameroon, and Chad. Increasing demand for irrigation is draining the lake, and blowing sand and desert dust are creating sand dunes that are encroaching on the vegetation along the perimet...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust storm in the Bodele Depression, Chad (afternoon overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
White dust from the Bodele Depression scrapes over the Lake Chad region in Eastern Chad in these Moderate Resolution Imaging Spectroradiometer (MODIS) images acquired on March 19 and March 21, 2004. Hot wind from the Sahara frequently sweeps over the dusty Bodele Depression. The pattern is so common that the winds have scoured a diagonal path in the ground marking its southwesterly flow. The lines are visible in the upper right corner of these images...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 7
[image]Dust storms in central Africa - Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
A bright white streak of Sahara dust blows southeast from the Bodele Depression towards Lake Chad in this Moderate Resolution Imaging Spectroradiometer (MODIS) image, acquired on December 28, 2003, by NASA’s Terra satellite. Clouds of dust from earlier storms linger south and west of the lake. The Bodele Depression is one of the most frequent sources of wind-blown dust in the world, and the effects of the regular storms are evident along the shore of Lake Chad...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 3
[image]Dust Storm over Lake Chad - The high-resolution image provided above is 500 meters per pixel. The MODIS Rapid Response System provides this image at MODIS? maximum spatial resolution of Image courtesy Jeff Schmaltz, NASA GSFC
Highly reflective dust was blowing from the northeast over Lake Chad (green splash at bottom of image) on April 9, 2003. Frequent dust storms are just one of the many factors slowly eating away at this prime source of freshwater for people, animals and plants in (counterclockwise from top left) Niger, Nigeria, Cameroon, and Chad. Increasing demand for irrigation is draining the lake, and blowing sand and desert dust are creating sand dunes that are encroaching on the vegetation along the perimet...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 4
[image]Dust storm in Chad - Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
Dry-season winds shape the climate around Lake Chad this time of year. At the end of the wet season, (September-October), Lake Chad (center) is at maximum extent, normally covering just under 10,000 square miles, but as the dry season progresses, the absence of rainfall and the unrelenting winds can dry the lake to only 3000 square miles by April or May.Millions of people from the countries surrounding Lake Chad (clockwise from top left: Niger, Chad, Cameroon, Nigeria) depend on the freshwater l...
Keywords: Where -- Chad; Where -- Niger; Where -- Cameroon; Where -- Nigeria
Downloads: 4
[image]Saharan Dust Storm - NASA image courtesy Jeff Schmaltz, at NASA GSFC
A dust storm swept across the Sahara Desert on May 10, 2006, moving dust across Niger, Nigeria, Cameroon, and Chad. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard the Terra satellite took this picture the same day. In this image, the dust appears as a pale beige plume that sweeps westward over the desert. White clouds dot the skies around the fringes of the storm. Sensor: Terra/MODIS.
Keywords: Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 7
[image]Dust storm in Chad - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Dust storms from the Sahara regularly whip through central Africa. These images show Lake Chad (green splash) roughly in the image center, and (clockwise from upper left) Niger, Chad, Cameroon, and Nigeria. In Chad, scattered fires (red dots) were detected by MODIS as well. A dust storm in northern Chad softens the top part of the image. Sensor: Terra/MODIS. Data Start Date: 12/18/02. Data End Date: 12/18/02.
Keywords: Where -- Chad; Where -- Niger; Where -- Cameroon; Where -- Nigeria
Downloads: 5
[image]Lake Chad and the Sahel - Image courtesy Jacques Descloitres, Rapid Response Team at NASA GSFC
Lake Chad, shown at the top-center of this true-color MODIS image acquired on October 21, 2001, is but a fraction of what it once was. The lake, surrounded by wetlands, has been taxed heavily as a source for numerous irrigation projects, and is subject to an arid climate that has endured a dramatic decrease in rainfall over the past forty years. The green and brown rippled area to the north and northwest of the lake (most clearly visible in the high-resolution image) suggests the lake's previou...
Keywords: What -- Earth; Where -- Chad; Where -- Cameroon; Where -- Nigeria
Downloads: 4
[image]Dust Storm and Fires in Central Africa - NASA image created by Jesse Allen, Earth Observatory, using data obtained from the team.
A science teacher or college professor could probably spend an entire school year teaching students about all the Earth system processes recorded in this image of central Africa captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on November 18, 2004. From biomes to geology to climate change to humans’ use—and overuse— of Earth’s landscapes, this image has them all.Northern Africa’s ocean of sand and rock, the Sahara Desert, spans the top of...
Keywords: What -- Earth; Where -- Chad; Where -- Niger; Where -- Cameroon; Where -- Nigeria
Downloads: 4
[image]Dust storm in the Bodele Depression, Chad (morning overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
White dust from the Bodele Depression scrapes over the Lake Chad region in Eastern Chad in these Moderate Resolution Imaging Spectroradiometer (MODIS) images acquired on March 19 and March 21, 2004. Hot wind from the Sahara frequently sweeps over the dusty Bodele Depression. The pattern is so common that the winds have scoured a diagonal path in the ground marking its southwesterly flow. The lines are visible in the upper right corner of these images...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 3
[image]Dust storm in central Africa - Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
An intense dust storm across Central Africa nearly hides the land from the view of the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite on March 8, 2004. In the heart of Africa, the dust is hanging over the countries of (clockwise from top left) Nigeria, Cameroon, Chad, and the Central African Republic. A few fires (marked in red) were still able to be detected through the thick air, and their smoke may be contributing to the haze...
Keywords: Where -- Central African Republic; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 4
[image]Dust Storm in Chad - Jeff Schmaltz
A dust storm blew through part of eastern Chad on June 11, 2006. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard NASA’s Terra satellite captured this image of the storm as it blew toward Lake Chad. In this image, the dust appears as a wisp of pale beige set against a darker tan background. Lake Chad, near the border with Nigeria and Cameroon, is barely visible in this image, although it has been easily discernible in other satellite images...
Keywords: What -- Terra; Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 3
[image]Central Africa Dust Storm - Image courtesy Jeff Schmaltz, NASA-GSFC
An intense dust storm across Central Africa nearly hides the land from the view of the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite on March 8, 2004. In the heart of Africa, the dust is hanging over the countries of (clockwise from top left) Nigeria, Cameroon, Chad, and the Central African Republic. A few fires (marked in red) were still able to be detected through the thick air, and their smoke may be contributing to the haze.The high-resolution image provided ab...
Keywords: Where -- Central African Republic; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 5
[image]Dust Storm off Western Sahara Coast - Image courtesy the , NASA-GSFC
In central and western Africa on February 14, 2005, waves of dust billowed outward from interior deserts, blanketing more than a dozen countries with a tan-colored haze that ultimately stretched out over the Atlantic Ocean. Dust is particularly thick in the countries to the south of Lake Chad, including Cameroon and Nigeria. The thickness of the dust in those areas almost completely hides the underlying savanna, giving the image the appearance of a watercolor painting...
Keywords: Where -- Atlantic Ocean; Where -- Chad; Where -- Cameroon; Where -- Nigeria
Downloads: 5
[image]Dust storm in Bodele Depression, Chad (afternoon overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
White dust from the Bodele Depression scrapes over the Lake Chad region in Eastern Chad in these Moderate Resolution Imaging Spectroradiometer (MODIS) images acquired on March 19 and March 21, 2004. Hot wind from the Sahara frequently sweeps over the dusty Bodele Depression. The pattern is so common that the winds have scoured a diagonal path in the ground marking its southwesterly flow. The lines are visible in the upper right corner of these images...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 3
[image]Fires in Central Africa - Image courtesy Jacques Descloitres, at NASA GSFC
Fire season in Africa south of the Sahara Desert has roared to life in December 2003. This image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite shows the location of more than 7,000 "hot pixels," which means that somewhere in each of those 1-square-kilometer pixels, MODIS detected a fire. In some cases these "hot spots" are isolated fires no larger than 1 square kilometer (and usually much smaller), and in other cases, they are a single large fire spread acr...
Keywords: Where -- Nigeria; Where -- Cameroon; Where -- Chad; Where -- Central African Republic
Downloads: 3
[image]Lake Chad - Chad, Niger, Nigeria, and Cameroon - Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC
Lake Chad, shown at the top-center of this true-color MODIS image acquired on October 21, 2001, is but a fraction of what it once was. The lake, surrounded by wetlands, has been taxed heavily as a source for numerous irrigation projects, and is subject to an arid climate that has endured a dramatic decrease in rainfall over the past forty years. The green and brown rippled area to the north and northwest of the lake (most clearly visible in the high-resolution image) suggests the lake's previou...
Keywords: What -- Earth; Where -- Chad; Where -- Cameroon; Where -- Nigeria; Where -- Niger
Downloads: 18
[image]Dust Storm over Lake Chad: Image of the Day - NASA -- The high-resolution image provided above is 500 meters per pixel. The MODIS Rapid Response System provides this image at MODIS? maximum spatial resolution of http://rapidfire.sci.gsfc.nasa.gov/gallery/?2003099-0409/Chad.A2003099.1240.250m.jpg 250 meters. Image courtesy Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team, NASA GSFC
Highly reflective dust was blowing from the northeast over Lake Chad (green splash at bottom of image) on April 9, 2003. Frequent dust storms are just one of the many factors slowly eating away at this prime source of freshwater for people, animals and plants in (counterclockwise from top left) Niger, Nigeria, Cameroon, and Chad. Increasing demand for irrigation is draining the lake, and blowing sand and desert dust are creating sand dunes that are encroaching on the vegetation along the perimet...
Keywords: Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon
Downloads: 18
[image]Fires across the Sahel : Image of the Day - NASA -- Image courtesy Jacques Descloitres, modland.nascom.nasa.gov/ MODIS Land Rapid Response Team.
Each year in March and April thousands of fires smolder in the grasslands, scrub, and dry forests of the West African Sahel and Soudanian woodlands. NASA's modarch.gsfc.nasa.gov/ Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard the terra.nasa.gov/ Terra spacecraft, captured this true-color image on March 2, 2001. Data from MODIS' infrared detectors were used to locate areas where fires are burning, shown by red dots...
Keywords: What -- Terra; Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 20
[image]Dust and Smoke near Lake Chad: Image of the Day - NASA -- Image courtesy Jesse Allen, based on data from the rapidfire.sci.gsfc.nasa.gov MODIS Rapid Response Team at NASA GSFC
A combination of dust of smoke clouds the air over Nigeria, Cameroon, and Chad in this modis.gsfc.nasa.gov Moderate Resolution Imaging Spectroradiometer (MODIS) image acquired on January 8, 2004, by the aqua.nasa.gov/ Aqua satellite. The streak of white in the top right corner is dust blowing out of the Bodele Depression. Dust storms in the Bodele depression are common. As recently as the 1960s, the area formed part of Lake Chad on the southern edges of the vast Sahara desert...
Keywords: What -- Aqua; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 21
[image]Dust Storm in the Bodele Depression: Natural Hazards - NASA -- NASA Image Of The Day
The air over central Africa was bright with blowing dust (top) and what is probably a mixture of dust and smoke (left center) when this image of the area around Lake Chad (large green area above image center) was captured by the Moderate Resolution Imaging Spectroradiometer modis.gsfc.nasa.gov (MODIS) on NASA's terra.nasa.gov Terra satellite was captured on November 28, 2004. In addition to the dust storm in the Bodele Depression north of Lake Chad, numerous fires (locations marked in red) burni...
Keywords: What -- Terra; What -- Earth; Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 31
[image]Fires in central Africa - Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
The Moderate Resolution Imaging Spectroradiometer (MODIS) flying on board the Aqua satellite detected hundreds of fires (red dots) in Central Africa on February 6, 2004. Many of these fires were likely started by farmers clearing their land. Biomass burning is a common agricultural practice worldwide. Indeed, in the lower half of the image, many fires are burning in or near brown areas of cleared land, not directly in the green forested area.This image also provides a view of Africa’s three b...
Keywords: Where -- Central African Republic; Where -- Sudan; Where -- Chad; Where -- Cameroon; Where -- Nigeria; Where -- Uganda
Downloads: 4
[image]Dust storm in Bodele Depression, Chad (morning overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Once serving as part of the floor for a much larger Lake Chad, the area now known as the Bodele Depression, located at the southern edge of the Sahara Desert in north central Africa, is slowly being transformed into a desert landscape. In the mid-1960s, Lake Chad was about the size of Lake Erie. But persistent drought conditions coupled with increased demand for freshwater for irrigation have reduced Lake Chad to about 5 percent of its former size...
Keywords: What -- Sun; Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Cape Verde
Downloads: 5
[image]Dust storm in Bodele Depression, Chad (afternoon overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Once serving as part of the floor for a much larger Lake Chad, the area now known as the Bodele Depression, located at the southern edge of the Sahara Desert in north central Africa, is slowly being transformed into a desert landscape. In the mid-1960s, Lake Chad was about the size of Lake Erie. But persistent drought conditions coupled with increased demand for freshwater for irrigation have reduced Lake Chad to about 5 percent of its former size...
Keywords: What -- Sun; Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Cape Verde
Downloads: 3
[image]Fires in West Africa - Image courtesy Jeff Schmaltz, NASA GSFC
A swath of red across the countries near the Gulf of Guinea in West Africa demonstrates how widespread the practice of agricultural burning is across central Africa this time of year. The red dots mark the location of active fires detected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite on December 8, 2003. Countries shown are (clockwise from top left) Burkina, Niger, Nigeria, Benin, Togo, Ghana, and Ivory Coast...
Keywords: Where -- Gulf of Guinea; Where -- Guinea; Where -- Niger; Where -- Nigeria; Where -- Benin; Where -- Togo; Where -- Ghana
Downloads: 6
[image]Dust storm in Bodele Depression, Chad (morning overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Once serving as part of the floor for a much larger Lake Chad, the area now known as the Bodele Depression, located at the southern edge of the Sahara Desert in north central Africa, is slowly being transformed into a desert landscape. In the mid-1960s, Lake Chad was about the size of Lake Erie. But persistent drought conditions coupled with increased demand for freshwater for irrigation have reduced Lake Chad to about 5 percent of its former size...
Keywords: What -- Sun; Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Cape Verde
Downloads: 3
[image]Fires in West Africa - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
This true-color Moderate Resolution Imaging Spectroradiometer (MODIS) image from November 15, 2002, shows fires (red dots) across several countries in west-central Africa. From top left (clockwise are Mali, Burkina, Niger, Nigeria, Benin, Togo, Ghana, and Ivory Coast. Sensor: Terra/MODIS. Data Start Date: 11/15/02. Data End Date: 11/15/02.
Keywords: Where -- Mali; Where -- Niger; Where -- Nigeria; Where -- Benin; Where -- Togo; Where -- Ghana
Downloads: 5
[image]Dust Storm in Western Africa - NASA image courtesy the at NASA GSFC. The image is available in , including MODIS’ maximum resolution of 250 meters per pixel.
Thick clouds of dust swept across western Africa on February 25, 2005. The dust is blowing out of the Sahara Desert in northeastern Niger and northern Chad. The storm has kicked up so much dust that the ground is not visible in Nigeria, Benin, and Burkina Faso. To the south of the storm, red dots mark out the locations of fires burning in the Sahel, Africa’s grasslands. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this image on February 25, 2005...
Keywords: What -- Aqua; What -- Earth; Where -- Niger; Where -- Chad; Where -- Nigeria; Where -- Benin; Where -- Burkina Faso
Downloads: 4
[image]Dust storm in Bodele Depression, Chad (afternoon overpass) - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Once serving as part of the floor for a much larger Lake Chad, the area now known as the Bodele Depression, located at the southern edge of the Sahara Desert in north central Africa, is slowly being transformed into a desert landscape. In the mid-1960s, Lake Chad was about the size of Lake Erie. But persistent drought conditions coupled with increased demand for freshwater for irrigation have reduced Lake Chad to about 5 percent of its former size...
Keywords: What -- Sun; Where -- Chad; Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Cape Verde
Downloads: 4
[image]Fires across western Africa - Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
A swath of red across the countries near the Gulf of Guinea in West Africa demonstrates how widespread the practice of agricultural burning is across central Africa this time of year. The red dots mark the location of active fires detected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite on December 8, 2003. Countries shown are (clockwise from top left) Burkina, Niger, Nigeria, Benin, Togo, Ghana, and Ivory Coast...
Keywords: Where -- Gulf of Guinea; Where -- Guinea; Where -- Niger; Where -- Nigeria; Where -- Benin; Where -- Togo; Where -- Ghana
Downloads: 5
[image]Dust storm in Chad - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
A large dust storm in central Africa chokes the air above (clockwise from top right) Chad, Central African Republic, Cameroon, Nigeria, and Niger. In the center of the image Lake Chad and its associated wetlands are barely visible through the dust. At bottom, fires (red dots) were detected across the region. This image is from the Aqua satellite on March 3, 2003. Sensor: Aqua/MODIS. Data Start Date: 3/3/03...
Keywords: Where -- Central African Republic; Where -- Chad; Where -- Cameroon; Where -- Nigeria; Where -- Niger
Downloads: 3
[image]Dust and fires across Central Africa - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
Pale clouds of dust sweep out of the Bodele Depression in this image of central North Africa taken on January 3, 2005, by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite. The lake appears to be little more than a small pool of open water surrounded by green vegetation that contrasts sharply with the surrounding arid terrain. The dust stretches southward into a region of transitional vegetation between the Sahara Desert to the north and the tropical savannas i...
Keywords: Where -- Central African Republic; Where -- Niger; Where -- Nigeria; Where -- Cameroon; Where -- Chad
Downloads: 3
[image]North-central Africa - Jeff Schmaltz
A series of images shows the extent of vegetation in North-central Africa, including the countries of Nigeria (bottom left), Cameroon (bottom center), Chad (bottom right and right), Niger (left), Algeria (top left), and Libya (top). The dark green patch towards the bottom of the image is Lake Chad. The first image, when you first open the page, is a true color composite—exactly how the landscape looks to the human eye...
Keywords: Where -- Nigeria; Where -- Cameroon; Where -- Chad; Where -- Niger; Where -- Algeria; Where -- Libya
Downloads: 9
[image]STS-55 Earth observation of a thunderstorm over the coast of Nigeria - NASA/Johnson Space Center (NASA-JSC)
STS-55 Earth observation taken aboard Columbia, Orbiter Vehicle (OV) 102, shows a 30-mile-wide thunderstorm (tops estimated near 45,000 feet). It was photographed by the STS-55 crew from an altitude of 162 nautical miles over the coast of Nigeria, 05-02-93, at 11 hours, 13 minutes, 34 seconds GMT (near noon, local time). A Meteosat view taken at almost exactly the same time allows us to pinpoint the location of the storm but does not show any of the detail evident in the Shuttle photograph...
Keywords: What -- STS-55; What -- Earth; What -- Columbia; Where -- Nigeria; Where -- Gulf of Guinea; Where -- Guinea
Downloads: 13
[image]Dust Storm in the Bodele Depression - Image courtesy Jacques Descloitres, NASA-Goddard Space Flight Center
A dust storm in Central Africa that began in late December 2004 intensified in the first week of January 2005. In the southern Sahara Desert, a large low-lying area known as the Bodele Depression is one of the largest sources of wind-blown dust on Earth. In this image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, captured on January 6, the thick cloud of dust begins in Chad (upper right) and spreads outward over neighboring countries.Along the southe...
Keywords: What -- Earth; Where -- Central African Republic; Where -- Chad; Where -- Nigeria; Where -- Cameroon
Downloads: 5
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